Saddle-stitcher attachment



June 2, 1925. 1,540,519

H. EHLIG SADDLE STITCHER ATTACHMENT Filed Feb. 8, 1924 mmrog Harry Ehhg,

ATTORNEY ISO Patented June 2, 1925.

UNITED stares PATENT: o'FF c HARRY EHLIG, or rn'ennnivna, new roan, assienor. r0 snonenn. swam .3;

COMPANY, INC., 015 NE??? YORK, N. Y.. GQRPQB-ATIQN OF NEW YORK.

sannts s rrrennn arracmvisnr.

Application filed February 8, 1924.. Serial in. 691,333. 7

To all whom it may concern.

Be it known that I, HARRY EHLIG, a citizen of the United States, and a resident of Pearl River, in the county of Rockland and State of New York, have invented certain new and useful Improvements iii-Saddle- Stitcher Attachments, of which the follow ing is a specification, reference being made to the accompanying drawings, forming a part thereof.

My invention relates to devices for wire stitching or stapling groups of superposed signatures or sheets in forming pamphlets, magazines, etc. The signatures are usually superposed by the signature gather-er, and are then carried by any suitableconveyor toward the wire-stitching mechanism which presses the signatures tightly together and while so pressed such stitching mechanism inserts the wire staples and clenches same in position.

The objects of my invention are, among other things, to provide a simple and effec tive attachment for the saddle or support adjacent the wire stitching mechanism whereby the folded signatures maybe handled and then held for stitching so as to avoid undesirable frictional engagement with the apex of the saddle and the clencher boxes to prevent off-setting and also injurious marking or otherwise damaging or tearing the surface of the under signatures at or adjacent the longitudinal folds.

Another object of my invention resides in providing means to more accurately aline or register the apex of the folded signatures about to be stitched with the clencher points in the boxes mounted on the signature support or saddle.

My improved attachment also embodies other advantageous features of novelty and improvement in handling and stitching signatures in which the various parts are simplified in form and action, and are made more effective and otherwise better adapted for use, all of which will be hereinafter described. and then particularly set forth in the appended claims;

The drawings show my improved attachment in a preferred embodiment; however, the inventive idea is capable of being embodied in a variety of mechanical structures with similar advantages and results.

Of the drawings, Fig. 1 is a fragmentary and diagrammatic front view of a stitching or stapling machine equipped with my improved attachment; Y

Fig. 2 is an enlarged cross-sectional view taken on the line 2-2 of Fig. 1 looking in the direction of the arrows,- and" j Fig.- 3 is a detailed elevation with the front of the saddle support removed taken on the line 33 of Fig. 2 looking in the direction of the arrows.

Similar numerals refer throughout the several figures. I

Referring to Fig. 1, the frame 4 carries the stitcher or stapling heads 5 of any wellknown construction to cooperate with alike number. of clencher boxes 6 adjustably mounted on the inverted V-shaped saddle or support? along whichthe groups of sign-atures are carried; by any .suitableconveyor mechanism not shown. Each clencher b0x'6 is adjustably. secured in position onthe saddle 7 by set-screws 8 passing through the elongated slot 9 formed in the saddle 7 and the screws 8 are manipulated through the opening 10 as shown in Fig. '3. The usual reclprocating presser-bars 11 to bend the ends of the wire staples to force the latter over the superposed signatures are slidably mounted in the clencher boxes 6 as shown in Figs. 1 and 2.

Adjacent each clencherbox 6 means are mounted on the saddle 7 to project slightly above the apex of the saddle and in alinement with the clencher points in the clencher boxes 6: A preferred embodiment for each stitcher shown in Fig. 1 comprises the bracket 12 having the slot 13' formed therein with the roller 14 pivotally mounted. on the pin 15 fastened to the upper end of the bracket so as to be freely rotatable on such pin. Such roller 14 is preferably formed of any suitable fibre or hard rubber material and the periphery is suitably narrowed to a thin edge 16 as shown in Fig. 2. Projecting from within the slot 9 and through the slot 13 in the bracket 12 is the screw-bolt 17 upon which is threaded the nut 18 as shown in Figs. 2 and 3. By loosening the nut 18 the bracket 12 with the roller 14 may be swung downwardly to the inoperative position shown by dotted lines in Fig. 3, or the attachment may be horizontally shifted to any desired position along the saddle 7. When the bracket 12 is held in upright position (shown in full lines in Fig. 3) the peripheral edge 16 of to similar parts i the roller 14 projects slightly above the apex of the saddle 7 and the plane of theclencher points in the boxes 6.

The signatures are held in open position along the saddle 7 by such peripheral edge 16 resting inthe fold of the signature so that the successive signatures are not only conveyed along the saddle \vitha minimum of frictional engagement therewith but also are accurately alined and held on the saddle with their folds in register With the clencher points in the boxes 6.

The foregoing construction embodies the underlying principles of my, invention, but various changes or modifications may be made in the structural details without departing from the scope of my improvements defined in the. following claims.

I claim as my invention 1. In combination, a support or saddle on which signatures are held in open position, mechanism for stitching said signatures so held including means carried by the saddle, and independently rotatable means adjustably carried by the saddle for holding the signatures above said saddle and in register with said means carried by the saddle.

2. In combma-t1on,a support or saddle on which signatures are held in open position,

a stitching mechanism for said signatures comprising a clencher box slidably mounted on said saddle, and independently rotatable means slidably mounted adjacent the clencher box' for projecting the signatures from said saddle and in register AVitll said clencher box.

3. In combination, an inverted V-shaped support or saddle on which signatures are held in open position, a stitching mechanism i for said signatures comprising ,a clencher box slidably mounted on said saddle, means for projecting thesignatures from said saddle-and clencher box, and a single means for securing saidprojeeting means in any predetermined position relatively to the apex of the saddle and spaced from the clencher box.

4. In a saddle-stitcher attachment, the combination of an inverted V-shaped snpport orsadd le for groups of signatures, and

a freely rotatable roller adjustably secured to the saddle in any predetermined position.

for holding the signatures at any distance in alinement with the apex of the saddle when stitched; I

5. In a-signat-ure stitching machine hav ing a stitcher head, a signature supporting saddle positioned beneath the stitcher head and adapted to have; groups of signatures fed th'erealong and positioned beneath the stitcher head to be stitched thereby, a clincher mounted in a longitudinal slot in the saddle in register with the stitcher head and adapted to clinch the stitches inserted inthe groups of signatures by the stitcher head, a longitudinally .slotted supporting member, a wheel member having a substantially sharp peripheral edge, means freely rotatably securing the Wheel to one end of the supporting member, and means past through the slot of said supporting member to adjnstably secure the wheel member in the slotof the saddle with its peripheral edge in longitudinal alignment With the stitcher head and clincher. HARRY EHLIG. 

